CN114276664B - Antistatic master batch and preparation method thereof - Google Patents
Antistatic master batch and preparation method thereof Download PDFInfo
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- CN114276664B CN114276664B CN202110358015.5A CN202110358015A CN114276664B CN 114276664 B CN114276664 B CN 114276664B CN 202110358015 A CN202110358015 A CN 202110358015A CN 114276664 B CN114276664 B CN 114276664B
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Abstract
The invention provides an antistatic master batch and a preparation method thereof. The weight ratio is as follows: 60-70% of carrier, 15-25% of alkyl sulfonate compound, 5-10% of coupling agent, 3-5% of antioxidant and 1-3% of dispersing agent. The antistatic master batch prepared by the invention has excellent antistatic effect, good compatibility with resin, simple preparation and easy operation.
Description
Technical Field
The invention relates to the technical field of plastic master batches, in particular to an antistatic master batch and a preparation method thereof.
Background
Most of the polymer materials are insulating materials, and static electricity is generated in the using process. The side effects caused by static electricity accumulation are not only to hinder normal production and work, but also to cause explosion and fire, and cause life and property safety loss for people. Therefore, antistatic materials are increasingly receiving attention, and the additional value and market competitiveness of the product can be improved by the development and industrialization of antistatic master batch products, so that the application range of the product is widened.
The antistatic properties of the materials are generally improved by adding antistatic masterbatches. The addition method of the antistatic agent is mainly an internal addition method, but because the common antistatic agent is incompatible with the carrier, the antistatic agent is easy to separate out from the surface of the material, so that the finally prepared product has large addition amount, poor antistatic effect and cannot last for a long time.
Disclosure of Invention
In order to solve the technical problems, a first aspect of the present invention provides an antistatic masterbatch, which comprises the following raw materials in mass ratio: 60-70% of carrier, 15-25% of alkyl sulfonate compound, 5-10% of coupling agent, 3-5% of antioxidant and 1-3% of dispersing agent.
As a preferred embodiment, the carrier is polycarbonate.
As a further preferred embodiment, the polycarbonate has a melt index of 8 to 12g/10min at 300℃at 1.2 kg.
As a preferred embodiment, the alkyl sulfonate compound is a secondary alkyl sulfonate compound.
As a preferred embodiment, the alkyl sulfonate compound has an average carbon chain length of C14-C16 and the secondary alkyl sulfonate compound has an average molecular weight of 300-350.
As a preferable technical scheme, the coupling agent is a silane coupling agent.
As a further preferable technical scheme, the silane coupling agent is compounded by N-phenyl-3-aminopropyl trimethoxy silane and polyether modified silane coupling agent.
As a preferable technical scheme, the compound mass ratio of the N-phenyl-3-aminopropyl trimethoxy silane to the polyether modified siloxane coupling agent is 3:5.
as a preferable technical scheme, the antioxidant comprises a main antioxidant and an auxiliary antioxidant.
As a preferable technical scheme, the main antioxidant is a hindered phenol antioxidant, and the auxiliary antioxidant is a phosphite antioxidant.
As a further preferable technical scheme, the hindered phenol antioxidant is an antioxidant 1010, and the phosphite antioxidant is an antioxidant 168.
As a preferable technical scheme, the compound mass ratio of the antioxidant 1010 to the antioxidant 168 is 1:1.
as a preferable technical scheme, the dispersing agent comprises one or more of paraffin wax, EBS, polyethylene wax and magnesium stearate.
As a further preferable embodiment, the dispersant is polyethylene wax.
As a preferred embodiment, the dispersant is a linear polyethylene wax.
As a preferable technical scheme, the average grain diameter of the polyethylene wax is 7.5-9.5um.
The second aspect of the invention provides a preparation method of the antistatic master batch, which comprises the following steps of uniformly mixing and stirring formula raw materials, and extruding and granulating by a double-screw extruder to obtain the antistatic master batch.
As a preferable technical scheme, the temperature of each extrusion zone is 225-270 ℃, and the temperature of the extruder head is 255+/-5 ℃.
As a preferable technical scheme, the temperature of each extrusion zone is 225-270 ℃, and the temperature of the extruder head is 255+/-5 ℃.
As a further preferable technical scheme, the extrusion temperature is one zone temperature, two zones temperature and two zones temperature are 235+/-10 ℃, the extrusion temperature is four zones temperature, five zones temperature and six zones temperature are 250+/-10 ℃, and the extrusion temperature is seven zones temperature, eight zones temperature, nine zones temperature and ten zones temperature are 260+/-10 ℃.
The beneficial effects are that: the antistatic master batch prepared by the invention has excellent antistatic effect, good compatibility with resin, simple preparation and easy operation.
1) The antistatic master batch prepared by the invention can be added into resin, so that not only can the charge density be effectively dispersed and an excellent antistatic effect be achieved, but also the antistatic effect is durable.
2) The antistatic master batch prepared by the invention has good compatibility with resin, and can achieve good antistatic effect with a small addition amount.
3) The antistatic master batch prepared by the method is simple in preparation method, easy to operate, available in raw materials and low in cost.
Detailed Description
In order to solve the above problems, the present invention provides an antistatic masterbatch, which comprises the following raw materials in mass ratio: 60-70% of carrier, 15-25% of alkyl sulfonate compound, 5-10% of coupling agent, 3-5% of antioxidant and 1-3% of dispersing agent.
As a preferred embodiment, the carrier is polycarbonate.
As a further preferred embodiment, the polycarbonate has a melt index of 8 to 12g/10min at 300℃at 1.2 kg.
The carrier carries various components, so that the carrier can carry various components after being melted, is uniformly dispersed into base resin, and bonds the components into granules, thereby being convenient to use.
As a preferred embodiment, the alkyl sulfonate compound is a secondary alkyl sulfonate compound.
As a preferred embodiment, the alkyl sulfonate compound has an average carbon chain length of C14-C16 and the alkyl sulfonate compound has an average molecular weight of 300-350.
The alkyl sulfonate compound is an anionic surfactant, and consists of two parts, namely a hydrophilic group and a hydrophobic group, wherein the hydrophobic group is compatible with resin, the hydrophilic group is oriented and arranged in the air to form a monolayer, moisture in the air is absorbed, and self ions and aqueous solution are utilized to accelerate leakage of static charge, so that the antistatic capacity is enhanced. Meanwhile, the friction coefficient of the material can be reduced, and the generation of static charges can be reduced and inhibited.
As a preferable technical scheme, the coupling agent is a silane coupling agent.
As a further preferable technical scheme, the silane coupling agent is compounded by N-phenyl-3-aminopropyl trimethoxy silane and polyether modified silane coupling agent.
As a preferable technical scheme, the compound mass ratio of the N-phenyl-3-aminopropyl trimethoxy silane to the polyether modified siloxane coupling agent is 3:5.
the coupling agent improves the compatibility of the polycarbonate with other components, enabling better binding of the various components to the carrier. Meanwhile, the polyether modified silane coupling agent has a longer carbon chain, so that aggregation of various substances is reduced, and the substances are dispersed more uniformly. In addition, the coupling agent can also enhance the antistatic capability of the master batch, the phenyl in the coupling agent enhances the activity of amino, and the coupling agent contains amino and polyether chain segments as hydrophilic groups, so that the coupling agent is favorable for absorbing moisture in air, thereby enhancing the antistatic capability.
As a preferable technical scheme, the antioxidant comprises a main antioxidant and an auxiliary antioxidant.
As a preferable technical scheme, the main antioxidant is a hindered phenol antioxidant, and the auxiliary antioxidant is a phosphite antioxidant.
As a further preferable technical scheme, the hindered phenol antioxidant is an antioxidant 1010, and the phosphite antioxidant is an antioxidant 168.
As a preferable technical scheme, the compound mass ratio of the antioxidant 1010 to the antioxidant 168 is 1:1.
as a preferable technical scheme, the dispersing agent comprises one or more of paraffin wax, EBS, polyethylene wax and magnesium stearate.
The antioxidant can improve the ultraviolet resistance and the oxidation resistance of the master batch and prevent the problems of easy oxidative discoloration, cracking and the like of the terminal product. The hindered phenol antioxidant can react with the oxidation free radical, and meanwhile, the hindered phenol antioxidant is not easy to cause color change. The phosphite antioxidant can decompose high-activity substances into low-activity substances through the change of the valence of phosphorus atoms, and the low-activity substances and the phenol antioxidant cooperate to enhance the antioxidant effect.
As a further preferable embodiment, the dispersant is polyethylene wax.
As a preferred embodiment, the dispersant is a linear polyethylene wax.
As a preferable technical scheme, the average grain diameter of the polyethylene wax is 7.5-9.5um.
The dispersing agent can reduce the aggregation degree of each component in the system, so that the components can be uniformly dispersed. The dispersing agent is melted with resin, coated on the surfaces of all substances, wets and permeates all the components, improves the compatibility with a carrier, weakens the cohesive force of aggregation of all the components, and ensures that all the substances can be uniformly dispersed. The polyethylene wax is a low-molecular substance, has low viscosity, can reduce the viscosity of a system, improves the fluidity, has good mixing property, does not influence the performance of a terminal product, and plays roles of infiltration, dispersion and stability.
The second aspect of the invention provides a preparation method of the antistatic master batch, which comprises the following steps of uniformly mixing and stirring formula raw materials, and extruding and granulating by a double-screw extruder to obtain the antistatic master batch.
As a preferable technical scheme, the temperature of each extrusion zone is 225-270 ℃, and the temperature of the extruder head is 255+/-5 ℃.
As a preferable technical scheme, the temperature of each extrusion zone is 225-270 ℃, and the temperature of the extruder head is 255+/-5 ℃.
As a further preferable technical scheme, the extrusion temperature is one zone temperature, two zones temperature and two zones temperature are 235+/-10 ℃, the extrusion temperature is four zones temperature, five zones temperature and six zones temperature are 250+/-10 ℃, and the extrusion temperature is seven zones temperature, eight zones temperature, nine zones temperature and ten zones temperature are 260+/-10 ℃.
The present invention will be specifically described below by way of examples. It is noted herein that the following examples are given solely for the purpose of further illustration and are not to be construed as limitations on the scope of the invention, as will be apparent to those skilled in the art in light of the foregoing disclosure.
In addition, the raw materials used are commercially available unless otherwise indicated.
Examples
Example 1
An antistatic master batch comprises the following components in percentage by mass: 66% of carrier, 20% of alkyl sulfonate compound, 8% of coupling agent, 4% of antioxidant and 2% of dispersing agent.
The carrier is polycarbonate. The melt index of the polycarbonate at 300 ℃/1.2kg is 10g/10min.
The alkyl sulfonate compound is a secondary alkyl sulfonate compound. The alkyl sulfonate compound has an average carbon chain length of C15 and an average molecular weight of 330.
The coupling agent is a silane coupling agent. The silane coupling agent is compounded by N-phenyl-3-aminopropyl trimethoxy silane (CAS number: 3068-76-6) and polyether modified siloxane coupling agent. The compound mass ratio of the N-phenyl-3-aminopropyl trimethoxy silane to the polyether modified silane coupling agent is 3:5.
the antioxidant comprises a main antioxidant and an auxiliary antioxidant. The main antioxidant is hindered phenol antioxidant, and the auxiliary antioxidant is phosphite antioxidant. The hindered phenol antioxidant is antioxidant 1010, and the phosphite antioxidant is antioxidant 168. The compound mass ratio of the antioxidant 1010 to the antioxidant 168 is 1:1.
the dispersing agent is polyethylene wax. The dispersing agent is linear polyethylene wax. The average particle size of the polyethylene wax was 8.5um.
According to the above, the raw materials are selected as follows:
the carrier is PC-1100. The PC-1100 was purchased from Hengguan Hengyi Plastic Co.
The alkyl sulfonate compound was Mersolat H95, langerhans, germany, purchased from kappaphycus alvarezii, inc.
The coupling agents are U.S. Michael Coatosil 3501 and U.S. Michael coupling agent Silquest Y-9669, which are available from Shanghai Kayinji chemical Co.
The antioxidants are Pasteur antioxidant Irganox 1010 and Pasteur antioxidant Irganox 168, which are purchased from Suzhou Kogyo commercial company.
The dispersing agent is Corean PE3620 wax powder, and is purchased from Shanghai Kaine chemical industry Co.
The preparation process of antistatic mother granule includes the steps of mixing the materials, extruding and pelletizing in a double screw extruder to obtain antistatic mother granule.
In the extrusion temperature, the temperature of the first extrusion area is 230 ℃, the temperature of the second extrusion area is 235 ℃, the temperature of the third extrusion area is 240 ℃, the temperature of the fourth extrusion area is 245 ℃, the temperature of the fifth extrusion area is 250 ℃, the temperature of the sixth extrusion area is 255 ℃, the temperature of the seventh extrusion area is 260 ℃, the temperature of the eighth extrusion area is 260 ℃, the temperature of the ninth extrusion area is 265 ℃, the temperature of the tenth extrusion area is 260 ℃, and the temperature of the machine head is 255 ℃.
Example 2
An antistatic masterbatch, the specific embodiment of which is the same as example 1, except that the carrier is PC-1070.
Example 3
An antistatic masterbatch, the specific embodiment of which is the same as example 1, except that the alkyl sulfonate is 1-pentadecyl sodium sulfonate.
Example 4
An antistatic masterbatch, the specific embodiment of which is the same as example 1, except that the alkyl sulfonate is sodium stearyl sulfonate.
Example 5
An antistatic master batch, the specific embodiment of which is the same as example 1, is different in that the silane coupling agent is a polyether modified siloxane coupling agent.
Example 6
An antistatic master batch, the specific implementation mode of which is the same as that of example 1, is different in that the silane coupling agent is compounded by N-phenyl-3-aminopropyl trimethoxy silane and polydimethylsiloxane.
Example 7
An antistatic masterbatch, the specific embodiment of which is the same as example 1, except that the dispersant is paraffin wax.
Performance testing
The antistatic master batch prepared in the embodiment is uniformly mixed with the resin, and the addition amount of the master batch is 5% of the mass of the resin. And (5) injection molding the resin sheet. The voltage was measured by an ion balance measurement method using a SIMCO FMX-004 static tester, measuring three times, and taking an average.
TABLE 1
The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to equivalent embodiments without departing from the technical content of the present invention, and any simple modification, equivalent changes and alterations to the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (1)
1. An antistatic master batch is characterized by comprising the following components in percentage by mass: 66% of carrier, 20% of alkyl sulfonate compound, 8% of coupling agent, 4% of antioxidant and 2% of dispersing agent;
the carrier is polycarbonate; the melt index of the polycarbonate is 10g/10min at 300 ℃/1.2 kg;
the alkyl sulfonate compound is a secondary alkyl sulfonate compound; the alkyl sulfonate compound has an average carbon chain length of C15 and an average molecular weight of 330;
the coupling agent is a silane coupling agent; the silane coupling agent is compounded by N-phenyl-3-aminopropyl trimethoxy silane and polyether modified siloxane coupling agent; the compound mass ratio of the N-phenyl-3-aminopropyl trimethoxy silane to the polyether modified silane coupling agent is 3:5, a step of;
the antioxidant comprises a main antioxidant and an auxiliary antioxidant; the main antioxidant is hindered phenol antioxidant, and the auxiliary antioxidant is phosphite antioxidant; the hindered phenol antioxidant is an antioxidant 1010, and the phosphite antioxidant is an antioxidant 168; the compound mass ratio of the antioxidant 1010 to the antioxidant 168 is 1:1, a step of;
the dispersing agent is polyethylene wax; the dispersing agent is linear polyethylene wax; the average grain diameter of the polyethylene wax is 8.5um;
according to the above, the raw materials are selected as follows:
the carrier is PC-1100; the PC-1100 is purchased from Hengguan Hengyi plastic limited company;
the alkyl sulfonate compound is Mersolat H95, langerhans, germany, and is purchased from kappaphycus alvarezii chemical company, inc;
the coupling agents are U.S. Michael Coatosil 3501 and U.S. Michael coupling agent Silquest Y-9669, which are purchased from Shanghai Kayinjin chemical Co., ltd;
the antioxidants are a Pasteur antioxidant Irganox 1010 and a Pasteur antioxidant Irganox 168, and are purchased from Suzhou Kogyo commercial company;
the dispersing agent is Corean PE3620 wax powder, and is purchased from Shanghai Kaijin chemical industry Co., ltd;
the preparation method of the antistatic master batch comprises the following steps of uniformly mixing and stirring raw materials of a formula, and extruding and granulating by a double-screw extruder to obtain the antistatic master batch;
in the extrusion temperature, the temperature of the first extrusion area is 230 ℃, the temperature of the second extrusion area is 235 ℃, the temperature of the third extrusion area is 240 ℃, the temperature of the fourth extrusion area is 245 ℃, the temperature of the fifth extrusion area is 250 ℃, the temperature of the sixth extrusion area is 255 ℃, the temperature of the seventh extrusion area is 260 ℃, the temperature of the eighth extrusion area is 260 ℃, the temperature of the ninth extrusion area is 265 ℃, the temperature of the tenth extrusion area is 260 ℃, and the temperature of the machine head is 255 ℃.
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| US4965338A (en) * | 1988-08-18 | 1990-10-23 | General Electric Company | PBT with improved tracking resistance |
| CN106633778A (en) * | 2016-12-30 | 2017-05-10 | 东莞市奥能工程塑料有限公司 | High-content glass fiber reinforced antistatic PC composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5232348B2 (en) * | 2000-03-30 | 2013-07-10 | 帝人株式会社 | Aromatic polycarbonate composition, process for producing the same, and molded article thereof |
| US8674007B2 (en) * | 2006-07-12 | 2014-03-18 | Sabic Innovative Plastics Ip B.V. | Flame retardant and scratch resistant thermoplastic polycarbonate compositions |
| EP3196252B1 (en) * | 2011-03-31 | 2020-04-08 | Mitsubishi Chemical Corporation | Polycarbonate resin composition and molded article thereof |
| CN104341755A (en) * | 2013-07-30 | 2015-02-11 | 青岛欣展塑胶有限公司 | PC (Polycarbonate) antistatic masterbatch |
| CN105131552A (en) * | 2015-09-18 | 2015-12-09 | 苏州新区佳合塑胶有限公司 | Antistatic composite material for mobile telephone shell |
| EP3239224A3 (en) * | 2016-04-28 | 2017-12-27 | LANXESS Deutschland GmbH | Thermoplastic moulding materials |
| CN108912642B (en) * | 2018-06-08 | 2020-08-04 | 黑龙江鑫达企业集团有限公司 | Antistatic, low-smoke, halogen-free and flame-retardant PC/ABS alloy material and preparation process thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4965338A (en) * | 1988-08-18 | 1990-10-23 | General Electric Company | PBT with improved tracking resistance |
| CN106633778A (en) * | 2016-12-30 | 2017-05-10 | 东莞市奥能工程塑料有限公司 | High-content glass fiber reinforced antistatic PC composite material and preparation method thereof |
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